• 1 Lb filet mignon
  
• 2 TBSP margarine
  
• 1 chopped onion
  
• 1 cup red wine
• 1 TBSP flour
• 1 cup brewed coffee
• 1 beef stock cube
• Salt
  

Preparation:

For the sauce: melt the margarine in a pan and brown the chopped onion. Dissolve the flour in the red wine and add to the pan. Add the coffee, the stock cube and salt to taste. Stir until thick.

Grill the fillet mignons, and add the sauce and serve.